#0A213D#0A213D
#0A213D is a very dark, moderate cyan. Relative luminance 0.015; OKLCH L 24.7% C 0.061 H 255.0°. Best body text is #FFFFFF at 16.18:1 contrast (WCAG AA passes).
Color values
| HEX | #0A213D |
|---|---|
| RGB | rgb(10, 33, 61) |
| HSL | hsl(213, 72%, 14%) |
| HSV | hsv(213, 84%, 24%) |
| CMYK | cmyk(83.6%, 45.9%, 0%, 76.1%) |
| CIE-LAB | lab(12.54, 2.71, -20.56) |
| CIE-LCH | lch(12.54, 20.74, 277.52°) |
| OKLab | oklab(24.66% -0.0157 -0.0587) |
| OKLCH | oklch(24.66% 0.061 255) |
| XYZ | xyz(1.5110, 1.4890, 4.6217) |
| Luminance | 0.0149 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Navy Blue
#1B2A4A
ΔE00 3.81
Navy (survey)
#01153E
ΔE00 5.80
Marine
#042E60
ΔE00 6.57
Dark
#1B2431
ΔE00 6.63
Navy Blue (survey)
#001146
ΔE00 7.89
Dark Navy Blue
#00022E
ΔE00 8.75
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#0A213D #3D260A
analogous
#0A3B3D #0A213D #0D0A3D
triadic
#0A213D #3D0A21 #213D0A
tetradic
#0A213D #3D0A3B #3D260A #0A3D0D
square
#0A213D #3D0A3B #3D260A #0A3D0D
split-complementary
#0A213D #3D0D0A #3B3D0A
monochromatic
#040E1A #040E1A #0A213D #133D72 #1B5AA6
Accessibility & contrast
On white
16.18
#0A213D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.30
#0A213D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #0A213D
16.18:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##0A213D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##0A213D | 1.00 | 16.18 | 1.30 | 16.18 |
| #FFFFFF | 16.18 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.30 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.18 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#14233E
Deuteranopia (green-blind)
#0C1E3C
Tritanopia (blue-blind)
#00282C
Achromatopsia (no color)
#212121
Design tokens & code
CSS
--color: #0a213d; /* rgb */ color: rgb(10, 33, 61); /* oklch */ color: oklch(24.7% 0.061 255.0);
Tailwind
colors: {
custom: {
50: '#515b72',
500: '#0a213d',
950: '#000000',
},
}SCSS
$custom: #0a213d; $custom-light: #515b72; $custom-dark: #000000;
JSON
{
"hex": "#0a213d",
"rgb": {
"r": 10,
"g": 33,
"b": 61
},
"hsl": {
"h": 212.941,
"s": 71.831,
"l": 13.922
},
"oklch": {
"l": 0.24662,
"c": 0.06075,
"h": 255
},
"luminance": 0.01489
}Semantic roles & 50–950 ramp
primary
#0A213D
secondary
#7A5528
accent
#9D39EF
background
#F4F5F6
surface
#E7E9EC
border
#C3C5C7
text
#020408
muted
#78797B